adjective, roil·i·er, roil·i·est.
Examples from the Web for roily
The water was choppy and roily, the canoe bobbed a good deal, the anchors dragged, and we did not see any fish.Tales of Fishes|Zane Grey
The grass very tender and succulent, the streams full and roily.Fresh Fields|John Burroughs
No; I need a buckler till all this roily water subsides and clears.The Adventures of Kathlyn|Harold MacGrath
Wind, rain, roily, shoaly seas breaking clear over the ship across decks drove Cook out from land to deeper water.Vikings of the Pacific|Agnes C. Laut
The water was not roily, but of a rich coffee-color, from the leachings of the woods.Locusts and Wild Honey|John Burroughs